# MURS420

**ZHIDE** · Fast Recovery / High Efficiency Diodes · SMC

MURS420 from ZHIDE, in a SMC. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| Package | SMC |
| Category | Diodes |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum repetitive peak reverse voltage | VRRM |  |  | 200 | V | Ratings at 25℃ ambient temperature unless otherwise specified | 1 |
| Maximum DC blocking voltage | VDC |  |  | 200 | V | Ratings at 25℃ ambient temperature unless otherwise specified | 1 |
| Maximum RMS voltage | VRMS |  |  | 140 | V | Ratings at 25℃ ambient temperature unless otherwise specified | 1 |
| Maximum average forward rectified current | IF(AV) |  |  | 4 | A | Ratings at 25℃ ambient temperature unless otherwise specified | 1 |
| Non-repetitive peak forward surge current | IFSM |  |  | 100 | A | 8.3 ms single half sine-wave | 1 |
| Maximum forward voltage | VF |  |  | 1.28 | V | IF=4.0A | 1 |
| Maximum reverse current at TA=25℃ | IR |  |  | 5 | μA | at VDC, TA=25℃ | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -55 |  | 150 | ℃ |  | 1 |
| Typical thermal resistance, junction to ambient | RθJA |  | 65 |  | ℃/W | Thermal resistance from junction to ambient at 0.375" (9.5 mm) lead length, PCB mounted (Note 1) | 1 |

## CAD (KiCad official)

- Symbol: `MURS420`
- Footprint: `Diode_SMD:D_SMC`
- 3D model: SMC (KiCad packages3D, STEP)
- 3D model files: `murs420-etched.step` / `murs420-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `murs420.step` / `murs420.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [ZHIDE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207788707045376) (2 pp, sha256 `2f2f5ff9b37d8592`, retrieved 2026-10-15, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/murs420-datasheet.pdf)